Bedplate for beater engines



Oct. 16 1923. 1,471,218 D. STUART v.

' BEDPLAT Fon- BEATER ENGINES Filed Aug, 4, 1921 A 2 sheets-sheet `2 W E i i K- Patented @etf 16, l

UNIrEpSfTT DAVID s'rUAR'n OFBERLIN, 'ixnw HAMBSIREQ fFTSEj-Lv ,t

i IBEDPLATEFR,BEATERENGIS; i

f fj` Application maneges; 4, i921T seriarnb. esejsa; 2 l

., Be it known. thatl, DAvin specification. y y e This invention appertains to certain improvernentsin stock beatersor,beating.'en-A I gines, and more particularly to a novel` form ofbed plate. construction adapted for ncooperationwith the beating roll or rolls ofsuch beatersfor'engines.

lThe principal ob'ect ofthe inyentionisto Y proyide fora bed plate constructionof'the class mentioned, and one .of the knature t p facilitate thefeeding or drawing of paper pulp or stockjthrough the beating roll or` 2'0 rollsat a faster-ratethan now obtains in the a operationxof such devices; l' l Q Another ob'ect of the inven on is to provide for a bed plate Aascha-racte'rized, and one wherein the increased feeding or drawzingoffthe 'paper pulp' or stockfthrough the Vbeating",roll or Vrolls is successfully accomoplishedl in a Vmanner to' -prevent the usual tearing'or breaking-upf ofthe length of the fibre inthe pulpy or stock, 'suchy as'y otherwise 3o. seriously diminishes fthe strength of the vlatter,and, as a consequence thereof, causes quality, c Y L c 'A further' object ofthe invention is'to provinde for a bed plate ofthe character men-- tioned, and one of a peculiar'natureand con-y structions, whereby to :create a...suctilon1be- V tween rthe saine4 and the vbeating roll lor rolls in amanner toaifect the faster vvfeeding or 40 drawing of thenfpulp'gor stoel; throughthe engine thanzthat :now Vobtains-jin allfco`ny .structions of such engines.

Another object ofthe inyjeiition is Ltoffpro` Vide a bed platefof the Vtype as hereinbeforcVY j bedplate andthebeatinglroll or rolls for' affair-1e thepulrwhieh eige@ Otheifaieffiead and Villustrated in` he. ,productv of .the pulp to'beinferior in thereof.`

with the fofegeiig?aap-@their Objects in View, the invention resides ina certain novel 7 v l and useful con'struction'andV arrangement of partsias ywillf'b/e' hereinafter Vmore fully ,des scribed, set forth in the appending'claims,

ings, 'inwhi'ch V l e. y f :"Figureil isfthe top planview of the pre,- ferred embodiment of theIbed plate',

.c `to clogxor obstructtlie passagewayr or ways e Y l p `STUART,faisubf Y n jectA ofthe Kingof England-,'*lre'siding at' Berlin, vin the county :of' Coos and State of Q5 New Hampshire, have invented certa-infnew-l `11:: and useful linprovementsin BekdplatesforVY Beater Engines,of.which the following is thefaccompanying drawc Fig. 2 is a side lelevationthereof,xpartly in section,

Fig.y 3 is a vertical transversesectiontaken f Fig 'sv a fragmentary "sidel elevationof a beaterf'roll showing the association ofthe c l iinproved bedl plate/therewith, the f latter 'being inend elevation, and, ,Y

Fig. v5 is a fragmentary front elevationfof f the roll as inFig. with the bed plate in side' elevation. Q

'lof I Referring to the drawing, ywherein similar characters ofy 'reference,designate corresponding parts in the' Vseveral Views thereof, thev preferred embodiment-of the invention las shown-therein` comprises'threeelongatedv hollow casings lO, 11,V and A12,' substantially rectangular in cross section',V andr spaced in parallel relation onewith respect with vthe 8O other, and in a` mannerto provide a space of a greater width between fthecastings` 10 and ll'than `the space betweenithe castings 11 and 12. The castings 1l andlQ areset up inthe positionsfas stated',-so laste rest upolrone` of ltheir`v narrowjjfaces, 'and' have their upper 'narrowfacesf-perforated 'if throughouttheirg lengthv with seriesk of"` staggered 'openings 513 'fin communicatie withV the/hollow interiorsfthereof-j y;

i Arranged inthespacesbetween. the seif'-,

visionfplatesf15g-"the plates le Vbeing of L gre ater thickness? than the plates `l5, and 'AarelclagnpedintoV position by: means ofgtrans-f verselyextendingy bolts 16-,zwhich are threadeden their oppositely'prjectingends tore-r ceiie 'the' washers 17 and theV securingfnuts thereof. i ll.interposedfleet-,weeny 'the outer of the plates are end plates 19 and 2O of equal or a greater thickness than the said plates 14, whereby and the castings 10, and 12,

to assure of all of the several plates le and V1'5 being clamped tightly together in uniformcntact'ing relation one with' respect to the other. The several plates '14', 15, 19 and -are of a greater width or height thanthc castings 10, 11 and 12;V which are lofan' equal heiofht one relatively 'to the other, and the portions or" the several platesabovethe castings are suitably fastened,y tegether by a series otl transversely extending 'bolts 21,

1 clampingthe'- saine between the nuts 22 15Y threaded "onto the Ioppositely projecting ends of the same. The faces ot thetwo vsections of the` bed plate ras"iformed by the i upper edges o f the f several'pla'tes A14, `15, 19,

and 20, are inwardly curved4 inthe trans-v verse directionona line approximating the arcof a circlethroughout the length thereof, whereby to conform to the curvature olf a beater lrolln withwhich the' bed plate-isto be associated.V The several plates 15 are oi" a: slightlyigreater height than theu several plates 14, whereby to provide a series of longitudinally extending grooves or channels 23 arranged in e v side ot the centralV casting 11,'tlie topedges of both setsof filler plates 141! andthe plates 15 being. correspondingly inclined outwardly 'n opposite directions v'rioni the transverse 'centerlof the base plate, so that the'grooves L or`cliannels-23iare of 'equal depth throughoutf their respective lengths. As shown iii Figure 1, however, the/opposite vend 'portions ofthe Vbed'plates, to either side of the transverse center thereof, arepreierably disposed in angular Irelation, one with respect to the other,-V which arrangement .acts to Y maintain ka more` even distribution of the pulp over the surface ofVv the bed plate than *wouldotherwise be the case.

In the use of a bed plate constructed and arranged in accordance withthe invention` the *same is to be positionedy beneath a beater'roll@substantially as is shown ink VVlTig-t, and, as the power isfsupplied tothe roller-shaft Zr, pulp willv be rfed tothe vroll and the bed plate correspondingly with the frotationfoic thefor'mer. vI Ihe lpulp is directfed inwardly of the transverse center of the Vbed plate,"as sliown-by the arrows cjin Fig.

' 1. Byf reason Vof theangular formation oie l"the" opposite portions of thebed plate, andy of the ppositely disposedsets otgroovesV L `1 or channels 23, thepulp 'will bel spread uni' orinly over-the 'entiresufrface of the bed pared to the rate of'low obtainingin the two sets, onespaced to eithery usual and known constructions of beater en gines. `At desired intervals, or when otherwise necessary, compressed air is admitted to the castings 10, 11, and 12 through the piped inlets 10, 11', and 12 complemental thereto, and will discharge upwardly 'of the openings 13, Vand 'act' to #prevent the clogging oi' the grooves or channels 23 of the bed plate with-thepulp, and to otherwise clear the same and keep them free for the creation'otl the suction, as aforesaid.

' It is well understood that, while a pre-k vfer'red'embodimentfot the bed plateV has been Vdescribed and illustrated herein in specific terms and ideta'ils-"oif- 'construction and' arrangement, various changes =in and modihcations''of Vthe saine maybe r'sortedto without departingfromthe spirit of the'in- .vention, or the lscopel of pended hereto.v g Having thus'fully described-"the 'invention, what is claimed, is 1QA `'bed plate'v forr beatingengine'rolls having a groovedfsurface Acooperative with they adjacent periphery lof a beating-"roll, whereby asuctionV is created therebetween orfacilitating the lfeed "of the-pulp stock through the engine, grovesain saidbed plate"edjending'lengitudinally thereof and at righti'ang'lesto thediec'tion fof uflow 'of the 'pulp across the same -rand iincliiiii'ig outwa-'rdly and downwardly "troni the trans'- ,verse center of vthe Qbe'd platefwhereby to effect an even distribution of thepulpinitsflow between tlie'roll and;"said-'bedplate'g and means `lfor discharging "compressed air to said bed plate and betweenthe ,opposed surfaces thereof` and 'said' beating -roll.

. 2..,A bed platefor` beating-engine having a grooved"surface cooperative with the vadJacent peripherybi" afbeatingroll,

whereby a suction j is created"therebetween for facilitating'the'v iteedof "the pulp ystock l through` the engine', saidbedjplate having its opposite end portions' angularly'disposed to either side of the transverse'A center thereof,g and means Vfor dischargingt'mpressed vair tof s'a.id" b'edA plate 'and` between ing roll,

A bed ,"plate'toertY beating engineiolls formed to `provide :spaced grooved sections, hollow cast-ings disposed between and Tto either Vside of said sections, 'aiidniineans' for supplying v'compressed Aair'to thej'interiors of: said casting, f said' castings, each having a plurality yof outlet opeiiingslior discharging thel compressed' fair;` 'upwardly offand betweenthembed `plateandbeating c rollior preventing the; clogging u'pnf the grooves thereof., i

i. A 'bed I in@ im;V beating engine" itiis formedtoprovided spaced se'tions', eachot` said sections being inadef up of alternately arrangedy division platesandillers to pro- V1,471,218 i t ff vide longitudinally extendinggroovesin the. air yvardly of'and between tlfie bed plate Y:

upper faces,thereof,l hollow castings disand eating rollffojr preventing the Clog!k posed between and to either side! of said gingnp 'of the grooves thereof.' 10k sections, and means for supplying'colnvIn testimony Whereof'I alix my signature f i 5 pressed air to the interiors of `said castings, hereto.

said Castings each haying a plurality of outi v let openingsfor dischargingrthe compressed i Y SlVUAR'.Kpi l. 

